1. Logic or the Art of Thinking (Jill Vance Buroker, trans.);Arnauld,1996
2. Concept lattices and order in fuzzy logic;Bĕlohlávek;Ann. Pure Appl. Logic,2004
3. J. Buroker, Port royal logic, Stanford Encyclopedia of Philosophy, http://plato.stanford.edu/entries/port-royal-logic/(accessed 6.8.15).
4. The basic theorem on preconcept lattices;Burgmann,2006
5. A multiview approach for intelligent data analysis based on data operators;Chen;Inf. Sci.,2008